Todd-Carriker : Birds of Santa Marta Region, Colombia. 55 



Besides the above there are a few species for which authors other 

 than the describers have assigned type-localities in the Santa Marta 

 region, as follows : 



Brotogcris jugular is jugular is, Chapman, 191 7. 

 Malacoptila mystacalis, Chapman, 191 7. 

 Hypnclus ruficollis ruficollis, Chapman, 1917 (error). 

 Dcndrocincla lafresnayci lafresnayei, Chapman, 1917. 

 Icterus auricapillus von Berlepsch and Hartert, 1902. 

 Arremon schlcgeli, von Berlepsch, 1910. 



North American Migrants. 



No less than sixty-six species of North American birds have been 

 recorded from the Santa Marta region — considerably more than have 

 recently been found in all the rest of Colombia. In this number are 

 included several species new to the South American list, recorded here 

 for the first time. The groups most largely represented are the shore- 

 birds, flycatchers, and wood-warblers. Most of these are true winter 

 residents, but some few species, as for example the Bobolink, Doli- 

 chonyx orycivorus, go still farther south for the winter, and are known 

 here only as transients. The great majority of the forms are those 

 which come from the eastern United States and Canada, but some of 

 the shore-birds are arctic in their breeding range. Vircosylva flavo- 

 viridis flavoviridis, which we here assign to the category of non-resi- 

 dent species, seems to have come from Central America, however; 

 while Tyr annus currirostris curvirostris, Vireosylva calidris calidris, 

 and Vircosylva calidris barbatula are clearly from the West Indies. 

 For several of the species on the list there are only one or two records 

 each — a circumstance which is significant, indicating that these records 

 pertain to waifs or strays, accidentally caught and carried along in 

 the great tide of migrants which crosses back and forth at the proper 

 seasons between this northernmost part of South America on the one 

 hand and the West Indies on the other. On the basis of Palmen's 

 theory this would suggest the former existence of a land-bridge be- 

 tween these two regions, but in any case there can be no question that 

 this route is a favorite one for the entry of northern migrants into 

 Colombia, and accounts for the large number of species of this class 

 known from this restricted area. No particular attention seems to 



